Meanwhile, core the tomatoes, cut them in half horizontally and scoop
the seeds out with your finger. Don't be obsessive about getting every seed,
but just go quickly through. Chop the tomatoes into 1-inch (or so) pieces and
place them in a bowl with mayonnaise, salt and pepper. Cover and chill at least
30 minutes, or several hours.

Before serving, chop lettuce and bacon, add to bowl and stir to coat
evenly. Serve with grilled sirloin or other steak, or as a side to hamburgers,
and accompany with corn on the cob.